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STMicroelectronics STM32G031C8U6
- Part No.:
- STM32G031C8U6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32G031C8U6.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,246
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Product details
Overview
STM32G031C8U6 from STMicroelectronics is an Arm® Cortex®-M0+ 32-bit microcontroller with 64 KB Flash, 8 KB SRAM, 12-bit ADC (0.4 µs conversion), dual USARTs (one with LIN/IrDA/ISO7816), and operating voltage range of 1.7–3.6 V. It integrates RTC with alarm, five-channel DMA, and 11 timers-including one 128 MHz-capable advanced timer-targeting cost-sensitive industrial control and smart sensor nodes.
For engineers reviewing the STM32G031C8U6 datasheet, STM32G031C8U6 pinout, STM32G031C8U6 application, or STM32G031C8U6 equivalent, key selection factors include its 48-pin UFQFPN package, 64 MHz max CPU frequency, 5 V-tolerant I/Os, low-power Stop/Standby modes, and dual Fast-mode Plus I²C interfaces supporting SMBus/PMBus wakeup.
Technical Context
The STM32G031C8U6 implements a single-core Arm Cortex-M0+ with Memory Protection Unit (MPU), enabling secure partitioning of code and data in resource-constrained embedded systems. Its clock system combines internal 16 MHz RC (±1 %) and 32 kHz RC (±5 %) oscillators with optional 4–48 MHz external crystal support and PLL for precise timing control.
Peripheral interconnect uses a hierarchical AHB/APB bus matrix with configurable DMA request mapping. The ADC supports hardware oversampling up to 16-bit resolution, while the two I²C interfaces include Fast-mode Plus (1 Mbit/s) with extra current sink and SMBus/PMBus compliance on one channel-enabling robust communication in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 64 MHz max - delivers deterministic real-time response for motor control and sensor fusion without floating-point unit overhead. |
| Memory | 64 KB Flash (with securable area), 8 KB SRAM (HW parity) - enables firmware updates with integrity checking and runtime data validation. |
| ADC | 12-bit, 0.4 µs conversion, up to 16 external channels - supports fast sampling of analog sensors (e.g., temperature, current) in closed-loop feedback systems. |
| Timers | 11 timers: 1x advanced (128 MHz capable), 4x general-purpose 16-bit, 2x low-power 16-bit - provides flexible PWM generation, input capture, and ultra-low-power periodic wakeups. |
| I/O Voltage | 5 V-tolerant on multiple pins - allows direct interfacing with legacy 5 V logic without level-shifting components in mixed-voltage designs. |
| Low-Power Modes | Sleep, Stop, Standby, Shutdown - Stop 0 mode draws ≤0.33 µA (typical) with RTC active, enabling battery-powered operation for >10 years. |
| Communication | 2× I²C (Fast-mode Plus), 2× USART (one with LIN/IrDA/ISO7816), 2× SPI (32 Mbit/s), LPUART - supports multi-protocol connectivity in constrained edge nodes. |
Pinout & Package
STM32G031C8U6 is housed in a 48-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN48) package, 7 × 7 mm, 0.5 mm pitch, ECOPACK2-compliant. Pin layout supports full peripheral remapping via GPIO alternate function registers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation; decoupling required per datasheet layout guidelines. |
| NRST | Active-low reset input | Asynchronous reset with programmable brownout detection (BOR) and voltage detector (PVD) for reliable power-up sequencing. |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/Os | Up to 44 fast I/Os; multiple pins support 5 V tolerance and external interrupt capability for button, sensor, or status monitoring inputs. |
| PA9/PA10, PA14/PA15 | USART1 TX/RX, SWDIO/SWCLK | Dedicated debug interface (SWD) and primary UART pins enable in-system programming and host communication without external transceivers. |
| PA1, PA4–PA7, PB6–PB7 | ADC IN1–IN16, I²C1 SCL/SDA | Shared analog input and digital interface pins allow flexible PCB routing; internal pull-ups enabled for I²C bus termination. |
Key Features
| Feature | Design Value |
|---|---|
| Secure boot with ROP | Readout protection (ROP) levels prevent unauthorized firmware extraction and enforce secure bootloader execution flow. |
| Hardware CRC unit | Accelerates checksum calculation for firmware image verification and communication packet integrity checks in real time. |
| VBAT supply support | Enables RTC and backup registers to retain state during main power loss using coin-cell battery or supercapacitor. |
| Programmable PVD | Generates interrupt or reset when VDD drops below user-defined threshold - critical for graceful shutdown in battery-powered devices. |
| Temperature sensor | Integrated calibrated sensor (±1.5°C accuracy) enables ambient or die temperature monitoring without external components. |
Applications
| Industrial Sensor Node | Smart Home Actuator |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity node with BLE gateway interface. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, data preprocessing, low-power scheduling, and UART-to-BLE bridge timing. Use Value: 0.33 µA Stop 0 mode with RTC alarm enables 10+ year battery life; 5 V-tolerant I/Os simplify connection to legacy analog sensors. |
Use Scenario: Zigbee-enabled roller shutter motor controller with position feedback and overload detection. IC Role / Device Role / Timing Role: Real-time motor commutation supervisor using TIM1's advanced PWM and ADC-triggered current sensing. Use Value: 128 MHz-capable advanced timer delivers sub-microsecond PWM resolution; hardware oversampling improves current measurement SNR by 4×. |
| Energy Meter Interface | POS Peripheral Controller |
Use Scenario: DIN-rail mounted electricity meter with optical pulse output and RS-485 communication. IC Role / Device Role / Timing Role: Isolated communication bridge handling ISO7816-compatible metrology IC interface and Modbus RTU over RS-485. Use Value: USART1 with ISO7816 support eliminates external protocol translator; dual I²C interfaces manage metrology IC and EEPROM separately. |
Use Scenario: Compact receipt printer controller with thermal head driver, paper sensor, and USB-to-serial bridge. IC Role / Device Role / Timing Role: System-on-module host managing thermal head timing, GPIO-based paper jam detection, and LPUART-to-USB translation. Use Value: LPUART wakeup from Stop mode reduces idle power by >99%; 44 fast I/Os support parallel thermal head control and status monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G030F6P6 | 20-pin TSSOP, 32 KB Flash, no RTC calendar, no VBAT support | Lacks battery-backed RTC and backup registers; unsuitable for time-stamped logging or long-term standby. | Select when board space and BOM cost are critical, and real-time calendar functionality is unnecessary. |
| STM32G041F8P6 | 20-pin TSSOP, 64 KB Flash, 12-bit ADC, enhanced security (AES, RNG), 1.65–3.6 V range | Includes hardware crypto acceleration and true random number generator - required for secure firmware updates or payment peripherals. | Choose for applications needing cryptographic services or extended low-voltage operation down to 1.65 V. |
Compared with STM32G030F6P6, the STM32G031C8U6 adds calendar RTC, VBAT support, and 48-pin I/O scalability; versus STM32G041F8P6, it trades hardware crypto for lower cost and identical core/peripheral feature set in non-secure use cases.
Availability
STM32G031C8U6 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home actuators, and energy meter interfaces requiring stable component supply across multi-year production cycles.
Supply support for STM32G031C8U6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in microcontrollers, power management, and MEMS sensors for industrial, automotive, and consumer markets.
The STM32G0 series targets cost-optimized, ultra-low-power embedded applications with simplified toolchains and seamless migration from legacy 8-bit platforms - emphasizing ease of adoption and long-term supply assurance.
FAQ
What is the maximum operating frequency of the STM32G031C8U6?
The STM32G031C8U6 features an Arm Cortex-M0+ core rated for up to 64 MHz operation, achievable using the internal 16 MHz RC oscillator with PLL multiplication or an external high-speed crystal. This frequency is fully supported across the entire 1.7–3.6 V supply range and –40°C to 85°C ambient temperature.
Does the STM32G031C8U6 support hardware encryption?
No, the STM32G031C8U6 does not integrate hardware AES or TRNG modules. It includes a CRC calculation unit and readout protection (ROP), but lacks cryptographic accelerators found in the G041/G071 variants. Secure firmware updates require software-based implementations or external secure elements.
Can the STM32G031C8U6 operate from a 1.8 V supply?
Yes, the STM32G031C8U6 supports a minimum supply voltage of 1.7 V, making it compatible with 1.8 V systems. At 1.8 V, the maximum CPU frequency is reduced to 24 MHz per datasheet Table 21, and certain peripherals (e.g., ADC accuracy, I²C timing) require validation under actual operating conditions.
Is the UFQFPN48 package RoHS and REACH compliant?
Yes, the STM32G031C8U6 in UFQFPN48 packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006 requirements. It is also ECOPACK2-compliant, confirming halogen-free materials and lead-free terminations per STMicroelectronics' environmental policy.
STM32G031C8U6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-UFQFN Exposed Pad
- Series:
- STM32G0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 64MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, SmartCard, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 19x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G031C8U6 FAQ
1.How can I place an order for STM32G031C8U6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G031C8U6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32G031C8U6 reliable?
The price and inventory of STM32G031C8U6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G031C8U6 is usually 5 days.
3.What payment methods are accepted for STM32G031C8U6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G031C8U6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G031C8U6?
STM32G031C8U6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G031C8U6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32G031C8U6?
For technical support, including STM32G031C8U6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G031C8U6 requirements.
6.How does Aetrix verify that STM32G031C8U6 is sourced from the original manufacturer or authorized distributors?
All STM32G031C8U6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32G031C8U6 meets industry standards.
7.What is the process for return or replacement of STM32G031C8U6?
All STM32G031C8U6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G031C8U6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32G031C8U6 part is unused and in its original packaging.
Return procedure for STM32G031C8U6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32G031C8U6 Tags
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